Experience with calculating slings and rigging hardware loading and effects on capacity - calculating sling loading using trigonometry, moment magnification factors on lifting attachments, forces and moments on lifting attachments and BTH lifters, cause of sling failures, types of sling protectors, sling cut protection and edge effects on slings, code requirements for "adequate" protection, D to d ratio. Acknowledged industry expert understanding and experience in engineering for the use of lifting equipment, heavy lift cranes and specialized cranes, alternative heavy lifting systems, tailing techniques and equipment, rigging equipment, and transport/transfer of equipment, marine works, soil mechanics, load distribution systems, and structural design including ASME B30.20 BTH-1.